The Chicago Cubs won the season series against the Pittsburgh Pirates in a clinical 8-3 victory. The Chicago Cubs picked up their 67th win of the season and clinched a series victory as they cruised to an 8-3 victory over the Pittsburgh Pirates. The win gave the Cubs the season series victory as well. The game was a rock fight early on, with neither team drawing first blood through four innings. The Cubs managed just one hit off of Pittsburgh starter Luis Ortiz through four innings while the Pirates themselves had just two knocks off of Chicago starter Adrian Sampson.…